How to use io_attr method in autotest

Best Python code snippet using autotest_python

vtree.py

Source:vtree.py

1"""2Variable meant to contain a VariableTree of a particular type.3"""4#public symbols5__all__ = ["VarTree"]6from traits.api import Instance7from openmdao.main.variable import Variable, gui_excludes8class VarTree(Variable):9    """ A Variable for a :class:`VariableTree` of a particular type. """10    def __init__(self, default_value, allow_none=True, **metadata):11        from openmdao.main.vartree import VariableTree # Break import loop on VariableTree12        if isinstance(default_value, VariableTree):13            klass = default_value.__class__14            if 'iotype' in metadata:15                default_value._iotype = metadata['iotype']16            else:17                metadata['iotype'] = default_value.iotype18        else:19            raise TypeError('default_value must be an instance of VariableTree'20                            ' or subclass')21        metadata.setdefault('copy', 'deep')22        self._allow_none = allow_none23        self.klass = klass24        self._instance = Instance(klass=klass, allow_none=False, factory=None,25                                  args=None, kw=None, **metadata)26        self._instance.default_value = default_value27        super(VarTree, self).__init__(default_value, **metadata)28    def validate(self, obj, name, value):29        """ Validates that a specified value is valid for this trait. """30        if value is None:31            if self._allow_none:32                return value33            self.validate_failed(obj, name, value)34        try:35            value = self._instance.validate(obj, name, value)36        except Exception:37            obj.raise_exception('%r must be an instance of %s.%s, not %r' %38                                (name, self._instance.klass.__module__,39                                 self._instance.klass.__name__, type(value)),40                                TypeError)41        return value42    def post_setattr(self, obj, name, value):43        """ VariableTrees must know their place within the hierarchy, so set44        their parent here.  This keeps side effects out of validate(). """45        if value.parent is not obj:46            value.parent = obj47            value.name = name48        value._iotype = self.iotype49    def get_attribute(self, name, value, trait, meta):50        """Return the attribute dictionary for this variable. This dict is51        used by the GUI to populate the edit UI. Slots also return an52        attribute dictionary for the slot pane.53        name: str54          Name of variable55        value: object56          The value of the variable57        trait: CTrait58          The variable's trait59        meta: dict60          Dictionary of metadata for this variable61        """62        io_attr = {}63        io_attr['name'] = name64        io_attr['type'] = trait.trait_type.klass.__name__65        io_attr['ttype'] = 'vartree'66        for field in meta:67            if field not in gui_excludes:68                io_attr[field] = meta[field]...

slot.py

Source:slot.py

1"""2Trait for a Slot meant to contain an object of a particular type3or having a particular interface (either a Traits interface or a4zope.interface).5"""6# The regular Instance class that comes with Traits will only check public7# methods on an object if that object is not a HasTraits object, which means8# we get essentially no error checking for things like Case iterators where9# their API doesn't include any public methods. If we use zope.interface we10# don't have this problem.11#public symbols12__all__ = ["Slot"]13# pylint: disable-msg=E0611,F040114from openmdao.main.variable import gui_excludes15from openmdao.main.datatypes.instance import Base16import warnings17class Slot(Base):18    """A trait for an object of a particular type or implementing a particular19    interface. Both Traits Interfaces and zope.interface.Interfaces are20    supported.21    """22    def __init__(self, klass=object, allow_none=True, factory=None,23                 args=None, kw=None, **metadata):24        if 'iotype' in metadata:25            warnings.warn(FutureWarning( \26                    "The use of 'iotype' as metadata for 'Slot' will no longer be supported.\nUse 'Instance' in place of 'Slot' if you need to use 'iotype'.\n"), stacklevel=2)27        super(Slot, self).__init__(klass, allow_none, factory, args, kw, **metadata)28    def get_attribute(self, name, value, trait, meta):29        """Return the attribute dictionary for this variable. This dict is30        used by the GUI to populate the edit UI. Slots also return an31        attribute dictionary for the slot pane.32        name: str33          Name of variable34        value: object35          The value of the variable36        trait: CTrait37          The variable's trait38        meta: dict39          Dictionary of metadata for this variable40        """41        io_attr = {}42        io_attr['name'] = name43        io_attr['type'] = trait.trait_type.klass.__name__44        io_attr['ttype'] = 'slot'45        slot_attr = {}46        slot_attr['name'] = name47        if value is None:48            slot_attr['filled'] = None49        elif value is []:50            slot_attr['filled'] = []51        else:52            slot_attr['filled'] = type(value).__name__53        slot_attr['klass'] = io_attr['type']54        slot_attr['containertype'] = 'singleton'55        for field in meta:56            if field not in gui_excludes:57                slot_attr[field] = meta[field]58                io_attr[field] = meta[field]...

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